Time Vault, and Kiora's Follower

Prerequisites

• Time Vault on the battlefield
• Kiora's Follower on the battlefield
• Kiora's Follower does not have summoning sickness

Steps

1. Activate Kiora's Follower by tapping it, untap Time Vault
2. Activate Time Vault by tapping it, causing you to take an extra turn after this one
3. Repeat each turn

Results

• Infinite turns